vault
aramkor

Every file is re-encrypted here in your browser under the new password, then saved in one atomic step. Keep this tab open until it finishes — if anything fails, nothing is changed.

Each backup is a separate file, not an overwrite — pressing Backup again adds another, it doesn't replace the last one. The server keeps the 10 most recent automatically and clears older ones. Any backup you've frozen with chattr +i is kept on top of that and stays until you remove it by hand.